.canvas{
    min-height: 100%;
    background-color: #fff;
    overflow: hidden;
}
.component-warper{
    margin: 3px;
    border: 1px solid #fff;
    padding: 6px;
    border-radius: 4px;
    &:hover{
        border-color: skyblue;
    }

}
.selected{
    border-color: #1890ff !important;
}
.locked{
    opacity: .5;
        cursor: not-allowed;

}
.component{
    pointer-events: none;//用于屏蔽鼠标行为
}